Moved the AEC render sample queue into the audio processing module

webrtc/modules/audio_processing/echo_cancellation_bit_exact_unittest.cc

 /*
  *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 #include <vector>
@@ skipping 31 matching lines @@
                      bool drift_compensation_enabled,
                      int stream_drift_samples,
                      AudioBuffer* render_audio_buffer,
                      AudioBuffer* capture_audio_buffer,
                      EchoCancellationImpl* echo_canceller) {
   if (sample_rate_hz > AudioProcessing::kSampleRate16kHz) {
     render_audio_buffer->SplitIntoFrequencyBands();
     capture_audio_buffer->SplitIntoFrequencyBands();
   }
 
-  echo_canceller->ProcessRenderAudio(render_audio_buffer);
+  std::vector<float> render_audio;
+  EchoCancellationImpl::PackRenderAudioBuffer(
+      render_audio_buffer, 1, render_audio_buffer->num_channels(),
+      &render_audio);
+  echo_canceller->ProcessRenderAudio(render_audio);
 
   if (drift_compensation_enabled) {
     static_cast<EchoCancellation*>(echo_canceller)
         ->set_stream_drift_samples(stream_drift_samples);
   }
 
   echo_canceller->ProcessCaptureAudio(capture_audio_buffer, stream_delay_ms);
 
   if (sample_rate_hz > AudioProcessing::kSampleRate16kHz) {
     capture_audio_buffer->MergeFrequencyBands();
@@ skipping 267 matching lines @@
      DISABLED_Stereo48kHz_HighLevel_NoDrift_StreamDelay0) {
 #endif
   const float kOutputReference[] = {-0.003500f, -0.001894f, -0.003176f,
                                     -0.003500f, -0.001894f, -0.003176f};
   RunBitexactnessTest(48000, 2, 0, false, 0,
                       EchoCancellation::SuppressionLevel::kHighSuppression,
                       kStreamHasEchoReference, kOutputReference);
 }
 
 }  // namespace webrtc